
Step 2: Search for Windows 7 Ultimate product key, here you'll have several options to choose from. Go to amazon site by typing on your browser. This is a legitimate copy of Windows, first installed on this computer and on no other. For you to buy Window 7 Ultimate product key from Amazon, here are the simple step to take: Step 1: Launch your browser.

When I try to 'Activate Windows now', I get the same notification 'The product key you typed has been blocked from use by Microsoft' One of the notifications said to purchase a new license or run Windows Setup, I have run Setup, creating a new custom installation entering the Win7 Ultimate product key as before with automatic activation - Control Panel System Information has '3 days to automatic activation'. There are two ways to acquire a Windows 7 key: Purchase an original copy of Windows 7 professional (either on the internet or from a local dealer). I have tried entering the original product key for Win7 Pro, but that does not work with the Ultimate edition. I tried the telephone activation service but was told that the 9-group identification number that appeared on the screen was not recognised. Today, I tried again and was able to enter the full key, but was notified that the key was blocked with the error code 0xC004C003. When I attempted this initially, the dialog box would not accept numbers so I could not complete the process. This has been running perfectly, but yesterday I had a notification that Windows was not activated and requesting that I purchase another key, with the option of re-entering the product key.


Windows refused to boot so I installed a genuine Windows 7 Ultimate 64 that I had bought some years previously for another project but never used. A few months ago the motherboard failed and I eventually replaced it. I have a Dell T5500 workstation originally running Windows 7 Pro 64.
